K1 Technologies 150.55mm Forged H Beam Connecting Rods 22mm Pin Mazdaspeed 3 Disi MZR 2.3L L3-VDT

As a general rule of thumb, we tend to use K1 H Beam Rods on anything that will be making up to 175hp per rod. So if you are planning on making over 700hp on your 4cyl, We suggest that you ask us about one of our stronger rod options.
Billet 4340 Steel H Beam connecting rods. Closely monitored material mechanical properties for optimum performance. Designed and finish honed in the USA. Sizes held to some of the tightest tolerances in the industry, +/- .0001” and +/- 1 gram per end. Shot peened for improved fatigue life. Bronze wrist pin bushings. Exclusively using ARP 2000 fasteners.